COAUTHORS (accepted/published papers only)

 1) Amnon Besser                         1 time,        University of the Negev, Beer-Sheeva,                                                   Israelian.
 2) Jilyana Cazaran,                     1 time,        State University of Louisiana, Baton Rouge                                           Australian.
 3) Jan-Hendrik Evertse,            1 time,        Leiden University,                                                                                         Dutch.
 4) Joshua Brandon Holden        1 time.        Rose Hulman Institute of Technology, Terre Haute, Indianapolis,   American.
 5) Gary L. Mullen                        1 time,        State University of Pennsylvania,                                                             American.
 6) Alexander Reznikov              1 time,         Formerly: University of Durham, Scotland (Deceased)                      Israelian.
 7) Herman J.J. te Riele                2 times,      Centre for Mathematics and Computer Science, Amsterdam,          Dutch.
 8) Hans Roskam                           1 time,        University of Leiden, The Netherlands,                                                   Dutch.
 9) Peter Stevenhagen                  3 times,      University of Leiden, The Netherlands,                                                   Dutch.
10) Cameron L. Stewart              2 times,      University of Waterloo,                                                                               Canadian.
11) Robert Tijdeman                   1 time,        University of Leiden,                                                                                     Dutch.
12) Jerzy Urbanowicz,                 1 time,        IMPAN, Warsawa, Poland,                                                                         Polish.